5 Thread setting
5.1 Thread regulator, check spring, bolt for the thread lever mechanism
Rule:
1. The right edge of the thread regulator (1) should end at figure 2 on
the scale.
2. The check spring (5) should be set to the distance measure of
(A) = 10 to 12 mm. The spring travel consists of about 30°.
3. The position of the bolt (8) should be set as follows, depending on the
needle in use:
Needle thickness Nm Bolt position
70-80 B
90 - 200 C
–
Loosen screw (2), push the thread regulator (1) according to rule 1
to end at figure 2, tighten screw (2).
–
Loosen screw (3). Turn the stop sleeve (4) in the direction of the
arrow until the check spring (5) comes off the body (6). Turn the
stop sleeve (4) against the direction of the arrow until the check
spring (5) touches the body (6). Turn both parts (4) and (6)
together to reach the distance measure (A). Detain the body (6)
and turn the stop sleeve (4) for another 30° against the arrow.
Detain the parts (4) and (6), tighten screw (3).
–
Insert a 3 mm Allen key in the holes (7) and loosen the screws.
Bring the bolt (8) into the correct position according to rule 3 and
tighten screws (7).
29
EN
1
2
3
46
5
A
7
B
8
7
8
C
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